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m_sequence13211565465
这是一个m序列产生的基础程序，感觉比较经典(This is a m-sequence basis of the procedure, feeling more classic)
- 2007-01-02 22:12:09下载
- 积分：1
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matlab_code
it is moment method for microstrip line that is good for all
- 2013-11-05 23:36:18下载
- 积分：1
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AIRtoolsManual_3
this file contains the user manual for Algebraic Reconstruction Technique (ART) matlab toolbox
- 2011-12-24 22:25:09下载
- 积分：1
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simulationCDMA
transmitter receiver for CDMA
- 2009-12-26 07:01:13下载
- 积分：1
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bpsk
BPSK调制信号在AWGN信道中传输仿真(BPSK modulated signals in AWGN channel transmission simulation)
- 2009-06-05 23:42:36下载
- 积分：1
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MATLAB-Command-Window
matlab result example
- 2013-02-25 12:03:25下载
- 积分：1
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QC_codes
Construct the short length of QC LDPC codes without girth 4 and girth 6(The Program to construct the short length of QC LDPC codes without girth 4 and girth 6
Copyright (C) Yang XIAO, Jun FAN, BJTU, July 26, 2007, E-Mail: yxiao@bjtu.edu.cn.
This program presents an approach [1] for constructing the short length of LDPC codes with girth 8. First, we design 3 submatrices with different shifting functions given by our schemes, then combine them into a matrix according to our approach, finally, expand the matrix into a desired parity-check matrix using identity matrices and cyclic shift matrices of the identity matrices.
The simulation results in AWGN channels show that the codes which can be obtained by the generator matrix derived from this check matrix for encoding the random information bits are as good as random LDPC codes [1].
Ref:
[1] J. Fan, Y. Xiao, “A design of LDPC codes with large girth based on the sub-matrix shifting”, IET International Conference on Wireless Mobile and Multimedia Networks Proceedings (ICWMMN 2006), (CP525), p. )
- 2009-05-28 16:00:14下载
- 积分：1
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ali
passive filter simulinf
- 2015-03-07 03:39:04下载
- 积分：1
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calculation
在计算切削力的过程中，需要计算切削力系数，主要用于切削力系数的计算(calculation of cutting force coefficient)
- 2021-02-04 16:59:57下载
- 积分：1
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daimahekuangtu
，用MATLAB实现快跳频通信系统的仿真。主要应用了SIMULINK和COMMUNICATION BLOCKETS两个模块。整个设计包括了信源产生部分、发送部分、跳频调制部分、信道部分、接收部分和结果分析部分共六个模块，核心技术是伪随机序列的产生和频率合成器的设计，而关键技术是收发两端的伪随机码元的同步。伪随机码的产生用S－函数编程来开发自己的SIMULINK模块。同步的实现是收发两端采用相同的扩频脉冲触发。而且在设计中每个模块都采用了模块封装技术，从而简化了框图结构(Using MATLAB to achieve fast frequency-hopping communication system simulation. The main use of SIMULINK and COMMUNICATION BLOCKETS two modules. The whole design, including part of the generated source, sending part of some frequency-hopping modulation, channel of the receiving part and the results of analysis of part of a total of six modules, the core technology is the emergence of pseudo-random sequence and frequency synthesizer design, and the key technology is the transceivers at both ends of the pseudo-random synchronization symbol. Pseudo-random code generated by S-function programming to develop their own modules SIMULINK. Synchronization is used to send and receive ends of the same spread-spectrum pulse trigger. But also in the design of each module using the module packaging technology, which simplifies the structure of the diagram)
- 2021-03-22 14:09:16下载
- 积分：1
